ConnectMK joined forces with Freedom4, a joint venture between Pipex and Intel Capital, to offer the service, which the suppliers say is the first UK commercial wireless broadband service to use Wimax technology.
More than 1,000 people in Milton Keynes have registered interest in joining the Wimax network, said the partners.
With no BT line required, Wimax enables broadband to be rapidly installed at customers' premises or homes, and offers increased symmetrical (high sending and receiving speeds) broadband delivery.
Wimax is ideal for remote workers and users who need higher uplink bandwidth to send large volumes of data.
"Our aim is to make Milton Keynes the first Wimax-powered wireless internet city," said Steven Jewell, chief executive at ConnectMK. "As the Wimax network expands, we will have the capability to offer the service to an increasing number of residents and businesses, helping to make Milton Keynes a highly connected city."
ConnectMK is a private company that has been formed by Milton Keynes Council to drive a digital inclusion agenda, addressing the issue of poor broadband connectivity across Milton Keynes.